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/* -*- mode: C; c-file-style: "gnu" -*- */
/* dbus-gmain.c GLib main loop integration
*
* Copyright (C) 2002, 2003 CodeFactory AB
*
* Licensed under the Academic Free License version 1.2
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include "dbus-glib.h"
#include <glib.h>
typedef struct _DBusGSource DBusGSource;
struct _DBusGSource
{
GSource source;
DBusConnection *connection;
GList *poll_fds;
GHashTable *watches;
};
static gboolean dbus_connection_prepare (GSource *source,
gint *timeout);
static gboolean dbus_connection_check (GSource *source);
static gboolean dbus_connection_dispatch (GSource *source,
GSourceFunc callback,
gpointer user_data);
static GSourceFuncs dbus_funcs = {
dbus_connection_prepare,
dbus_connection_check,
dbus_connection_dispatch,
NULL
};
static gboolean
dbus_connection_prepare (GSource *source,
gint *timeout)
{
DBusConnection *connection = ((DBusGSource *)source)->connection;
*timeout = -1;
return (dbus_connection_peek_message (connection) != NULL);
}
static gboolean
dbus_connection_check (GSource *source)
{
DBusGSource *dbus_source = (DBusGSource *)source;
GList *list;
list = dbus_source->poll_fds;
while (list)
{
GPollFD *poll_fd = list->data;
if (poll_fd->revents != 0)
return TRUE;
list = list->next;
}
return FALSE;
}
static gboolean
dbus_connection_dispatch (GSource *source,
GSourceFunc callback,
gpointer user_data)
{
DBusGSource *dbus_source = (DBusGSource *)source;
GList *copy, *list;
/* We need to traverse a copy of the list, since it can change in
dbus_connect_handle_watch. */
copy = g_list_copy (dbus_source->poll_fds);
list = copy;
while (list)
{
GPollFD *poll_fd = list->data;
if (poll_fd->revents != 0)
{
DBusWatch *watch = g_hash_table_lookup (dbus_source->watches, poll_fd);
guint condition = 0;
if (poll_fd->revents & G_IO_IN)
condition |= DBUS_WATCH_READABLE;
if (poll_fd->revents & G_IO_OUT)
condition |= DBUS_WATCH_WRITABLE;
if (poll_fd->revents & G_IO_ERR)
condition |= DBUS_WATCH_ERROR;
if (poll_fd->revents & G_IO_HUP)
condition |= DBUS_WATCH_HANGUP;
dbus_connection_handle_watch (dbus_source->connection, watch, condition);
}
list = list->next;
}
g_list_free (copy);
/* Dispatch messages */
while (dbus_connection_dispatch_message (dbus_source->connection));
return TRUE;
}
static void
add_watch (DBusWatch *watch,
gpointer data)
{
GPollFD *poll_fd;
DBusGSource *dbus_source;
guint flags;
dbus_source = data;
poll_fd = g_new (GPollFD, 1);
poll_fd->fd = dbus_watch_get_fd (watch);
poll_fd->events = 0;
flags = dbus_watch_get_flags (watch);
dbus_watch_set_data (watch, poll_fd, NULL);
if (flags & DBUS_WATCH_READABLE)
poll_fd->events |= G_IO_IN;
if (flags & DBUS_WATCH_WRITABLE)
poll_fd->events |= G_IO_OUT;
poll_fd->events |= G_IO_ERR | G_IO_HUP;
g_source_add_poll ((GSource *)dbus_source, poll_fd);
dbus_source->poll_fds = g_list_prepend (dbus_source->poll_fds, poll_fd);
g_hash_table_insert (dbus_source->watches, poll_fd, watch);
}
static void
remove_watch (DBusWatch *watch,
gpointer data)
{
DBusGSource *dbus_source = data;
GPollFD *poll_fd;
poll_fd = dbus_watch_get_data (watch);
dbus_source->poll_fds = g_list_remove (dbus_source->poll_fds, poll_fd);
g_hash_table_remove (dbus_source->watches, poll_fd);
g_source_remove_poll ((GSource *)dbus_source, poll_fd);
g_free (poll_fd);
}
static void
add_timeout (DBusTimeout *timeout,
void *data)
{
}
static void
remove_timeout (DBusTimeout *timeout,
void *data)
{
}
void
dbus_connection_hookup_with_g_main (DBusConnection *connection)
{
GSource *source;
DBusGSource *dbus_source;
source = g_source_new (&dbus_funcs, sizeof (DBusGSource));
dbus_source = (DBusGSource *)source;
dbus_source->watches = g_hash_table_new (NULL, NULL);
dbus_source->connection = connection;
dbus_connection_set_watch_functions (connection,
add_watch,
remove_watch,
source, NULL);
dbus_connection_set_timeout_functions (connection,
add_timeout,
remove_timeout,
NULL, NULL);
g_source_attach (source, NULL);
}
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